Lenovo notebook battery - Li-Ion - 7800 mAh (45J7914) - New Sealed Genuine Original Lenovo Thinkpad 37++ (45J7914) 9-Cell Battery for Lenovo Thinkpad W700, W700ds, W701, W701ds. Not 3rd Party, Original Lenovo part. 1 Year Warranty (Sold by Phospedia Only). Sealed in Original Box. Not 3rd Party, Original Lenovo Part.